The important characteristics of the Vijayanagar administration was the Amara-Nayaka system. The top-grade officers of the army were known as Nayaks or Palaiyagars or Poligars. These officers were granted land in lieu of their services.
The Tabaqat-i-Nasiri which was compiled in 1260 CE by the author Minhaj-i-Siraj and it gives a complete account of Muhammad of Ghur’s conquest of India and the history of the Delhi Sultanate up to 1260 CE.
Qunum-i-Humayuni was written by Khwand Mir, also known as Ghiyasuddin Muhammad. It is an account of rules and ordinances established by emperor Humayun and of some building erected by him.